Fixing trunking for laying cable along bridge

Abstract

The utility model discloses a fixing wire duct for laying a cable along a bridge, belongs to the technical field of wire duct structures, and provides a fixing wire duct convenient to disassemble and assemble for laying the cable along the bridge, the fixing wire duct comprises a wiring frame, the wiring frame is provided with a back plate and a bottom plate which are integrated, and dust covers are jointly inserted into the side edges, away from each other, of the back plate and the bottom plate. The back plate is suitable for abutting against the side face of a bridge frame, the bottom of the bottom plate is fixedly connected with a bearing frame, the bearing frame is suitable for being fixedly connected with the bridge frame and providing supporting force for the bottom plate, the front side face, close to the upper edge, of the back plate is provided with a first clamping guide rail, and the upper surface, close to the front edge, of the bottom plate is provided with a second clamping guide rail. The first clamping guide rail and the second clamping guide rail are suitable for being matched with the dustproof cover. According to the utility model, the dustproof cover structure which can be clamped with the wiring frame is designed, and the dustproof cover can be easily detached and reinstalled, so that maintenance and rewiring become more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of cable duct structures, and in particular to a fixed cable duct for laying cables along a bridge. Background Art

[0002] Bridges are usually equipped with electrical equipment such as street lights and cameras, which require cables to provide power. Existing cable ducts used for laying cables are mostly fixed, which is not convenient for disassembly and maintenance. If the cables inside the duct are damaged and need to be replaced, it will be troublesome. Summary of the invention

[0003] The purpose of the present application is to provide a fixed cable trough for laying cables along a bridge frame that is easy to disassemble and assemble.

[0004] In order to achieve the above objectives, the present application provides a fixed cable trough for laying cables along a bridge: comprising a wiring rack, the wiring rack having an integrated back plate and a bottom plate, the sides of the back plate and the bottom plate that are away from each other are jointly inserted with a dust cover, the back plate is suitable for leaning against the side of the bridge, and the bottom of the bottom plate is fixedly connected to a supporting bracket, the supporting bracket is suitable for being fixedly connected to the bridge and providing support to the bottom plate, and is a component for connecting the cable trough unit with the bridge.

[0005] Preferably, the back plate has a first snap-fit ​​guide rail on the front side surface near the upper edge, and the bottom plate has a second snap-fit ​​guide rail on the upper surface near the front edge. The first snap-fit ​​guide rail and the second snap-fit ​​guide rail are suitable for cooperating with the dust cover, and the snap-fitting manner facilitates the installation and removal of the dust cover.

[0006] Preferably, the upper edge of the dust cover has a first plug-in strip bent downward, suitable for engaging with a slide groove formed between the first locking guide rail and the back plate; the lower edge of the dust cover has a second plug-in strip bent backward, suitable for engaging with a slide groove formed between the second locking guide rail and the bottom plate. Under normal circumstances, the dust cover will not fall off the wiring rack even if exposed to strong winds.

[0007] Preferably, the angle between the back plate and the bottom plate is 90°, the cross-section of the dust cover is arc-shaped, and the central angle of the arc is 90°, and the inner wall of the dust cover, the front surface of the back plate and the upper surface of the bottom plate together form a cavity for accommodating cables.

[0008] Preferably, the base plate is provided with a plurality of bridging holes near the left and right ends, and the bridging holes pass through the upper and lower surfaces of the base plate for bolts to pass through and fix the metal plates connecting adjacent wire trough units to the lower surface of the base plate.

[0009] Preferably, the support bracket includes a fixing plate fixedly connected to the bridge, the upper end of the fixing plate has a supporting arm, the upper surface of the supporting arm is suitable for being fixedly connected to the lower surface of the base plate, and a supporting plate is fixedly connected between the fixing plate and the supporting arm, so that the entire support bracket has better structural stability and can withstand a larger load.

[0010] Preferably, the fixing plate is provided with connecting holes penetrating the front and rear sides, the number of the connecting holes is at least two, and there is a height difference between the connecting holes. The connecting parts with the height difference can better share the bending stress.

[0011] Preferably, a bridging member is further provided at the end of the wiring rack and the dust cover, and the bridging member includes an integrated vertical plate, a horizontal plate and an arc plate, the vertical plate is suitable for keeping flush with the back plate, the horizontal plate is suitable for keeping flush with the bottom plate, and the arc plate is suitable for keeping flush with the dust cover; an upper latch is fixedly connected between the vertical plate and the arc plate, suitable for being inserted into the inner side of the corner where the back plate and the dust cover cooperate, and a lower latch is fixedly connected between the horizontal plate and the arc plate, suitable for being inserted into the inner side of the corner where the bottom plate and the dust cover cooperate, thereby providing a buffer between adjacent wire trough units.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) By designing a dust cover structure that can be engaged with the wiring rack, the dust cover can be easily removed and reinstalled, making maintenance and rewiring more convenient;

[0014] (2) By designing a right-angle structure for the cable duct, the cable duct can be set close to the outer side of the bridge, which makes it convenient for workers to observe whether the fixed cable duct is normal from a distance. In addition, the cable duct near the edge is closer to the electrical equipment, which can save the length of the cable and reduce the wiring cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the first stereoscopic schematic diagram of the overall structure of the fixed cable duct for laying the cable along the bridge.

[0016] Figure 2 This is a second stereoscopic schematic diagram of the overall structure of the fixed cable duct for laying the cable along the bridge.

[0017] Figure 3 A schematic diagram of the three-dimensional structure of the wiring rack for fixing the cable ducts laid along the bridge.

[0018] Figure 4 The three-dimensional structural cross-sectional view of the support frame of the fixed cable duct laid along the bridge frame.

[0019] Figure 5A schematic diagram of the three-dimensional structure of the dust cover of the fixed cable duct laid along the bridge for the cable.

[0020] Figure 6 The three-dimensional structural diagram of the bridging component of the fixed cable duct laid along the bridge frame of the cable.

[0021] In the figure: 1. dust cover; 101. first plug-in strip; 102. second plug-in strip; 2. wiring rack; 201. back plate; 202. bottom plate; 203. first engaging guide rail; 204. second engaging guide rail; 205. bridge hole; 3. supporting bracket; 301. fixing plate; 302. connecting hole; 303. supporting arm; 304. supporting plate; 4. bridge member; 401. vertical plate; 402. horizontal plate; 403. upper latch; 404. lower latch; 405. arc plate. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] like Figure 1-6The fixed cable trough for laying the cables along the bridge shown includes a wiring rack 2 for placing cables. The wiring rack 2 has an integrated back plate 201 and a bottom plate 202. The angle between the back plate 201 and the bottom plate 202 is 90°, that is, the cross-section of the wiring rack 2 is a right-angle L-shape. The bottom plate 202 is provided with a plurality of bridging holes 205 near the left and right ends. The bridging holes 205 pass through the upper and lower surfaces of the bottom plate 202, which is convenient for bolts to pass through and limit two adjacent wiring racks 2 by metal plates. This is a construction requirement in the prior art, not a design point of the present application, and will not be elaborated here.

[0027] The sides of the back plate 201 and the bottom plate 202 that are away from each other are jointly inserted with a dust cover 1, which has the function of dust and rain protection. The back plate 201 has a first locking guide rail 203 on the front side surface near the upper edge, and the bottom plate 202 has a second locking guide rail 204 on the upper surface near the front edge. The extension directions of the first locking guide rail 203 and the second locking guide rail 204 are parallel to the length direction of the wiring rack 2, and are used to cooperate with the dust cover 1. The cross-section of the dust cover 1 is an arc shape. In order to fit exactly with the wiring rack 2, the central angle of the cross-section arc is 90°.

[0028] The upper edge of the dust cover 1 has a first plug-in strip 101 bent downward, which is used to engage with the sliding groove formed between the first locking guide rail 203 and the back plate 201; the lower edge of the dust cover 1 has a second plug-in strip 102 bent backward, which is used to engage with the sliding groove formed between the second locking guide rail 204 and the bottom plate 202. After engagement, the dust cover 1 can slide along the length direction of the wiring rack 2.

[0029] The back plate 201 is suitable for leaning against the side of the bridge frame, and the rear side of the back plate 201 is in contact with the outer side of the bridge frame. The bottom of the bottom plate 202 is fixedly connected with a support bracket 3, which is used to be fixedly connected to the bridge frame and provide support for the bottom plate 202. The support bracket 3 includes a fixed plate 301 fixedly connected to the bridge. The fixed plate 301 will be provided with connection holes 302 that pass through the front and rear sides. The number of the connection holes 302 is at least two, and there is a height difference between the connection holes 302. Usually, two are provided and arranged up and down. The upper end of the fixed plate 301 has a support arm 303, and the support arm 303 The upper surface is suitable for fixed connection with the lower surface of the base plate 202. The support arm 303 can be separated from the base plate 202 first, and when installing, the lower surface of the base plate 202 is allowed to contact the upper surface of the support arm 303 before welding. This will increase the flexibility of the installation operation. The support arm 303 can also be directly welded to the base plate 202 to improve the installation efficiency, but the flexibility of the arrangement will be poor. A suitable method can be selected according to actual needs. A support plate 304 is fixedly connected between the fixed plate 301 and the support arm 303 to form a triangular structure with higher strength and better stability.

[0030] A bridge member 4 is also provided at the end of the wiring rack 2 and the dust cover 1 for connecting adjacent fixed wire trough units. The bridge member 4 includes an integrated vertical plate 401, a horizontal plate 402 and an arc plate 405. The vertical plate 401 can be kept flush with the back plate 201, the horizontal plate 402 can be kept flush with the bottom plate 202, and the arc plate 405 can be kept flush with the dust cover 1; an upper latch 403 is fixedly connected between the vertical plate 401 and the arc plate 405, which is just inserted into the inner side of the corner where the back plate 201 and the dust cover 1 cooperate; a lower latch 404 is fixedly connected between the horizontal plate 402 and the arc plate 405, which is just inserted into the inner side of the corner where the bottom plate 202 and the dust cover 1 cooperate. Since the widths of the three sides of the vertical plate 401, the horizontal plate 402 and the arc plate 405 of the bridge member 4 can be selected, the laying direction of the wire trough unit can be adjusted according to the actual direction of the bridge.

[0031] Installation method: first fix the wiring rack 2 on the bridge frame through the supporting bracket 3 to form a complete wire trough base, then place the required cables on the bottom plate 202 of the wiring rack 2, and finally engage the upper edge of the dust cover 1 first, then slightly pull the bottom of the dust cover 1 outward to allow the lower edge of the dust cover 1 to give way to the second engaging guide rail 204. After releasing the dust cover 1, the deformation of the dust cover 1 is restored, and the second plug-in strip 102 at the lower edge will automatically engage with the second engaging guide rail 204 to form a complete wire trough that protects against wind and rain.

[0032] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A fixed cable duct for laying cables along a bridge, characterized in that: The wiring rack (2) comprises an integrated back plate (201) and a bottom plate (202); the sides of the back plate (201) and the bottom plate (202) which are away from each other are jointly plugged with a dust cover (1); the back plate (201) is suitable for leaning against the side of a bridge frame; the bottom of the bottom plate (202) is fixedly connected with a support frame (3); the support frame (3) is suitable for being fixedly connected with the bridge frame and providing support force to the bottom plate (202).

2. The fixed cable duct for laying cables along a bridge as claimed in claim 1, characterized in that: The back plate (201) has a first snap-fit ​​guide rail (203) on the front side surface close to the upper edge, and the bottom plate (202) has a second snap-fit ​​guide rail (204) on the upper surface close to the front edge. The first snap-fit ​​guide rail (203) and the second snap-fit ​​guide rail (204) are suitable for cooperating with the dust cover (1).

3. The fixed cable duct for laying cables along a bridge as claimed in claim 2, characterized in that: The upper edge of the dust cover (1) has a first plug-in strip (101) bent downward, suitable for engaging with a slide groove formed between the first locking guide rail (203) and the back plate (201); the lower edge of the dust cover (1) has a second plug-in strip (102) bent backward, suitable for engaging with a slide groove formed between the second locking guide rail (204) and the bottom plate (202).

4. The fixed cable duct for laying cables along a bridge as claimed in claim 3, characterized in that: The angle between the back plate (201) and the bottom plate (202) is 90°, the cross section of the dust cover (1) is in the shape of an arc, and the center angle of the arc is 90°.

5. The fixed cable duct for laying cables along a bridge as claimed in claim 4, characterized in that: The bottom plate (202) is provided with a plurality of bridging holes (205) at positions close to the left and right ends, and the bridging holes (205) penetrate the upper and lower surfaces of the bottom plate (202).

6. A fixed cable duct for laying cables along a bridge as claimed in any one of claims 1 to 5, characterized in that: The support bracket (3) comprises a fixing plate (301) fixedly connected to the bridge, the upper end of the fixing plate (301) is provided with a supporting arm (303), the upper surface of the supporting arm (303) is suitable for being fixedly connected to the lower surface of the bottom plate (202), and a supporting plate (304) is fixedly connected between the fixing plate (301) and the supporting arm (303).

7. The fixed cable duct for laying cables along a bridge as claimed in claim 6, characterized in that: The fixing plate (301) is provided with connection holes (302) penetrating the front and rear sides, and there are at least two connection holes (302), and there is a height difference between the connection holes (302).

8. The fixed cable duct for laying cables along a bridge as claimed in any one of claims 1 to 5, characterized in that: The ends of the wiring rack (2) and the dust cover (1) are also provided with a bridge member (4), and the bridge member (4) includes an integral vertical plate (401), a horizontal plate (402) and an arc plate (405), wherein the vertical plate (401) is suitable for being kept flush with the back plate (201), the horizontal plate (402) is suitable for being kept flush with the bottom plate (202), and the arc plate (405) is suitable for being kept flush with the dust cover (1); an upper latch (403) is fixedly connected between the vertical plate (401) and the arc plate (405), and is suitable for being inserted into the inner side of the corner where the back plate (201) and the dust cover (1) are matched, and a lower latch (404) is fixedly connected between the horizontal plate (402) and the arc plate (405), and is suitable for being inserted into the inner side of the corner where the bottom plate (202) and the dust cover (1) are matched.

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